Lichens : Ostropales : StictidaceaeLichens

Absconditella pauxilla Vězda & Vivant

Description: Absconditella features some of the smallest lichens known to man. The yellow-white discs can be as tiny as 0.1mm and occurs usually on dead stumps and twigs, especially during the early stages of decomposition. The needle-shaped spores are three- to five-septate. In Ireland, this species was recorded from a rotting fence post in County Limerick.

Key Identification Features:

  • Minute lichen with attractive miniscule discs; usually on dead wood or decomposing fallen twigs and branches, especially around the edges of coniferous plantations
  • Spores 25-28ųm long, three- to five-septate.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Absconditella pauxilla at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Absconditella pauxilla at iNaturalist World Species Observations database.

 Giavarini, Vince J., Simms, Michael J., & Davey, Simon, 2026. Absconditella pauxilla. Vězda & Vivant. [In] Lichen Ireland.
https://www.habitas.org.uk/lichenireland/species.php?item=39551. Accessed on 2026-11-12.